--- title: Subscription shipping address phone validation - Shopify developer changelog description: Shopify’s developer changelog documents all changes to Shopify’s platform. Find the latest news and learn about new platform opportunities. source_url: html: https://shopify.dev/changelog/subscription-shipping-address-phone-validation md: https://shopify.dev/changelog/subscription-shipping-address-phone-validation.md --- [Back to Developer changelog](https://shopify.dev/changelog) July 1, 2022 Tags: * API * 2022-07 # Subscription shipping address phone validation As of the 2022-07 version of the Admin GraphQL API, the `phone` field of the delivery address will be validated on calls to `subscriptionContractCreate` and `subscriptionDraftUpdate`. This allows you to ensure phone numbers are properly formatted and will prevent errors that may occur when processing subscription payments with invalid data. Learn more about [SubscriptionContractCreate](https://shopify.dev/api/admin-graphql/unstable/mutations/subscriptionContractCreate) and [subscriptionDraftUpdate](https://shopify.dev/api/admin-graphql/unstable/mutations/subscriptionDraftUpdate) on Shopify.dev.